Yesterday for the first time we test fired our new 750lbf regen lox/ipa engine. Fire time was about five seconds, and we got good data on the test. The engine was waiting for us to finish rebuilding our integrated horizontal test stand system, which we creatively call "the test trailer". It's working well. We have a couple more engines already in the pipeline.

Nice vids Ben, good to see the 750lbf engine going!!!Question, are all Mastens engines past and future lox/IPA? Just interested since you guys are developing that new 2500lbf engine..

Well, for now we're sticking with LOX/IPA because it gives such a nice balance of cost/performance/convenience. That said, we've been thinking about other options--it's just for what we're doing, unless we have a customer who wants us to investigate it, LOX/IPA works fine for what we're trying to achieve.